Wrench.



A. G. TAYLOR.

WRENCH.

APPLICATION FILED MAR..2.1916.

Patented Sent. 5, 1916.

ARTHUR GILLETT TAYLOR, OF STREATHAM, LONDON, ENGLAND.

\VRENCH.

Application filed March 2, 1916. Serial No. 81,612.-

This invention has for its objectan improved adjustable wrench, the jaws of which are capable of being ad usted and used in various positions with respect to the handleaccording to the position of the nut, bolthead. or otherarticle to be gripped.

A further object is to provide means whereby the improved wrench may be Specification of Letters Patent.

caused to grip or to slide around the articleat the will of the user.

.-\ccording to this invention, on'e jaw has a stem which is screw threaded and provided with fiat sides upon which the movable jaw slides. the stem screwing into and through a nut fixed to a handle and the lower portion of the boss ofthe movable jaw being arranged-as av clutch to slide but not rotate upon the nut end of the liandle; the movable jaw is caused to approach the adjustably fixed jaw by suitablemeanssuch as the bifurcated end of a grip lever acting against the boss of the movable jaw. Both jaws are (or may be) also capable of rotary adjustment about the axis of the fixed jaw stem, and of being set or fixed in the altered position.

The invention is illustrated by the accompanying drawings in which I Figure l is a side elevation and Fig. 2 is a front elevation of the improved wrench: Fig. 3 isa sectional elevation of a modification and Fig, 4 is a section of Fig. 3 on the line AB.

In carrying the invention into cited: the stem (1 of theqadjustably fixed jaw b is screw threaded at r: and provided with flat sides (I,

-- the. threads to engage in a nut a formed in .or on, or attached to, a suitable handle and the flat sides to prevent the boss of the movable jaw 72/ from rotating on the stem (1'. A coil spring '11 is mounted on the stem (L between .the two jaws. A form of dog clutch. (such as indicated at 7-: in Figs. 1 and 2) is fitted between the movable jaw 71. and the nut e, the upper circular? part oi the clutch engaging with the circular boss of the movable jaw It and the other part with the nut end of the handle so as to be capable of sliding thereupon but not capable Patented Sept. 5, 1916.

of rotating thereon. In the exaniple shown this is effected by a rectangular formation of the lower part of the clutch which slides upon a corresponding formation of the nut end of the handl as shown in Figs. 3 and t. A grip lever m. pivoted at n to the handle.- is formed witha bifurated end o embracing the exterior of .the nut end of the handle and impinging against the lower end of the clutch 1.. so that when the user grips the lever m and the handle f, the clutch K and movable jaw 12, are driven toward the fixed jaw?) (as indicated by the dotted lines in Fig. 1) against the pressure of the spring z' \vl1icl1serves to separate the jaws when pressure on the grip lever m is relaxed. Thus, the jawsmay be caused to grip the object or slip around same as required.

1 Both j by the clutch l. but the fixed jaw 7) may be be set to a position suitable for the particular use to which they are to be applied. For example, the dotted lines in Fig. 2 rep" resent the jaws in a. position 90 degrees from that shown in full lines. The jaws may be readily removed and replaced by others of difi'erent dimensions.

The clutch Ir may be made integral with or fixed to the boss of the movable jaw h,'

in which case the-part Z of the clutch is dis- 1 ensed with. the lower part being slidable' upon the nut end of the, handle which may be. rectangular as shown or of any other suitable polygonal section. I

The handle and grip lever m may be constrtu-ted and arranged in the manner shown in Figs. 1 and 2, or they may pro ject in a more or less angular manner such as shown in Fig, 3. the position of the handle and lever which is adopted with respect to the body of the spanner or wrench being largely a matter of convenience .or

design or to suit particular circumstances.

I claim 1. A wrench comprising ajaw, a screwthreaded stem to which said jaw is fixed,

aws are nevented-from rotatingf adjusted by forcing the movable jaw it out. of engagement with the clutcln-when the said stem being provided with flat sides, amovable jaw slidable' upon the stem, a handle, a nut fixed to said handle and adapted to receive thefstem, a clutch face on the lower part of the movable jaw slidahle upon said stem, a clutch member slidable'on said handle adapted to engage said jaw clutch face and to lock the movable jaw against accidental rotation, and hand operated means to ca use the movable'jaw to slide upon the stem, asset forth.

2. A wrench comprising a jaw integral with a stem which is screw threaded and provided with flat sides, a movable jaw slidableupon the stem, a coil spring on the stem. between the two aws, a handle, a nut fixed to said handle to receive the stem, a clutch slidably mounted on the nut end of the handle and provided with a clutch face adapted to engage a corresponding clutch face on the boss of the movable jaw in any of several positions in one complete .rotation of the jaw stem in the nut, and hand operated means to cause the movable jaw to slide upon the stem, as set forth.

3. A Wrench comprising a jaw integral with a stem which is screw-threaded and provided with flat sides, a movable jaw slidable upon the stem, a coil spring on the stem between the two jaws, a handle, a nut fixed to said handle to receive the stem, a clutch face on the lower part of the movable jaw, a clutch member slidable upon the nut end of the handle and I adapted to engage said jaw clutch face to lock the movable jaw against accidental rotation, and a grip lever to cause the movable jaw to slide upon the stem, as. set forth. 4. A wrench comprising a jaw integral with a stem which is screw threaded and provided with flat sides, a movable jaw slidable upon the stem, a coil spring on the stem between the two'jaws, a handle, a nut fixed to said handle to receive the stem, a clutch slidably mounted on the nut end of the handle and provided with a clutch face adapted to engage a corresponding clutch face on the boss of the movable jaw in any of several positions in one complete rotation of the jaw stem in the nut, and a grip lever having a bifurcated end acting against the clutch to cause the movable jaw to slide upon the stem, as set forth.

In testimony whereof I have signed my name to this specification in the presence of a subscribing Witness.

ARTHUR GILLETT TAYLOR. Witness:

A. W. Downmo. 

